ArticlePneumonia (Nathan Qld.)2022
Mixed pulmonary infection with four isolates of nontuberculous mycobacteria: a case report of mycobacterium bacteremicum infection.
Article in Pneumonia (Nathan Qld.), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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8 authors at 2 institutions in 1 country.
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Abstract
backgroundA mixed pulmonary infection of Mycobacterium bacteremicum and three different isolates of nontuberculous mycobacteria (NTM) is an unusual clinical manifestation and have not yet been indicated. In this case report, we reported four isolates of NTM using phenotypic and genotypic test of pulmonary sample in Tehran, Iran. CASE PRESENTATION: We report a case of severe pulmonary disease in a 19-year-old male patient with productive cough, shortness of breath, and low-grade fever for several weeks. The C-reactive protein (CRP) level (80.2 mg/L) and erythrocyte sedimentation rate (ESR) (95 mm/h) were high. The computed tomographic scan indicated bronchiectasis, nodular opacities, consolidation, and cavitary lesions on both sides. The result of purified protein derivative (PPD) test was equal to 15 mm. The sequences of hsp65, rpoB, and 16S rDNA genes indicated more than 99% homology to four isolates of nontuberculous mycobacteria (NTM), including Mycobacterium fortuitum, M. chelonae, M. mucogenicum, and M. bacteremicum. We found that all four strains were susceptible to amikacin, cefoxitin, ciprofloxacin, clarithromycin, imipenem, and linezolid. The patient was treated with ciprofloxacin, clarithromycin, and amikacin, along with Montelukast, for five months.
conclusionWe report a case of severe pulmonary infection by four isolates of NTM. After treatment, the patient reported complete resolution of the signs and a weight gain of 5 kg; also, the CRP and ESR were normal. Nine months after the infection diagnosis, a new CT scan revealed further improvements.
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